lower thread priority of native module and JS thread

Reviewed By: achen1 Differential Revision: D4921012 fbshipit-source-id: 71df4ab0614f20f092b992c07e828eb5ad951159
facebook · Apr 20, 2017 · 97a8663 · 97a8663 · brunolemos · Jun 7, 2017
1 parent 38f5b84
commit 97a8663
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diff --git a/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java b/ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java
@@ -23,6 +23,7 @@
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
+import android.os.Process;
 import android.view.View;
 
 import com.facebook.common.logging.FLog;
@@ -742,6 +743,7 @@ private void runCreateReactContextOnNewThread(final ReactContextInitParams initP
       @Override
       public void run() {
         try {
+          Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
           final ReactApplicationContext reactApplicationContext = createReactContext(
             initParams.getJsExecutorFactory().create(),
             initParams.getJsBundleLoader());
@@ -789,7 +791,6 @@ public void run() {
         }
       }
     });
-    mCreateReactContextThread.setPriority(Thread.MAX_PRIORITY);
     mCreateReactContextThread.start();
   }
 

diff --git a/ReactAndroid/src/main/java/com/facebook/react/bridge/queue/MessageQueueThreadImpl.java b/ReactAndroid/src/main/java/com/facebook/react/bridge/queue/MessageQueueThreadImpl.java
@@ -200,6 +200,7 @@ public static MessageQueueThreadImpl startNewBackgroundThread(
         new Runnable() {
           @Override
           public void run() {
+            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
             Looper.prepare();
 
             looperFuture.set(Looper.myLooper());